Improvement in automatic fuel-feeders for furnaces



V 2Sheets-Sheet1 R. MORGAN. Automatic Fuel-Feeder for Furnace No.196,924. Patented- Nov 6, I877.

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R. MORGAN, Automatio Fuel-Feeder'for Furnace.

No. 196,924. Patented Nov. 6,1877.

ETERS, PHOTQ-LITHOGRAPMER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

ROBERT MORGAN, OF BIRMINGHAM, ENGLAND.

IMPROVEMENT IN AUTOMATIC FUE L-FEEDERS FOR FURNACES.

Specification forming part of Letters Patent No. 196,924, dated November6, 1877 application filed April 19, 1877.

' rocating feeddoor, operated by power, for

automatically feeding fuel from a hopper into a furnace, and in thecombination, with the same, of grate-bars having a longitudinalmovement.

The object of my invention will be more readily understood by referringto the draw-' ings, consisting of Figure 1, Sheet 1, which is, for thesake of illustrating the invention, a front elevation of aboiler-furnace fitted with my improved movable fire-bars, my inventionbeing equally applicable to other descriptions of furnaces. Fig. 2,Sheet 2, is a part longitudinal section of the same; and Fig. 3 is aplan and side elevationof the bars and modifications thereof. v

I connect one end of each alternate fire-bar,

' A, to a cranked axle or eccentric-shaft, B,

which is caused to revolve slowly by means of cross-gear toothed andwormed pinions G D E, Fig. 1, driven from a main shaft, or by some othersuitable arrangement, and the revolution of the cranked axle oreccentricshaft B imparts to the movable fire-bars A a coincident motion,consisting of arise and fall simultaneously with a forward and backwardmovement, the other fire-bars F being fixed and stationary. The movementof the barsA feeds onward the fuel from the hopper G, and the ashes fallover the end H of the bars, ready for removal by opening the door I bymeans of the rod and handle I. The movable bars A are formed withhollows or indentations K in their sides, as inthe plan, Fig. 3,allowing ashes to fall through, and also insuring the admission of airto the fire, and keeping the fire-bars cool.

' L, Fig. 3, is a plan, and L a side elevation,

of a movable bar, showing the hollows or indentations alternately oneither side of the bar. M shows, in side view, the bar adapted for thearrangement in the plan, Fig. 3, and N is a side elevation of one of thefixed bars F. O is the feed-door of the furnace, which I arrange so asto have a slow and up-and-down movement, by means of a rising verticallever, P, operated by a cam-disk from the pinionshaft R, and connectedto the lever P is a cross- I jointed arm, S, having a slot and studconnected to axes T and arms V, so that as the lever P is raised orlowered, the door of the furnace will be similarly raised or lowered,and will thus prevent the fuel from bridging or clogging in the hopper,to facilitate which I serrate the bottom edge of the door, orIform teeththereupon, and the atmospheric air is likewise prevented from enteringat the door 0. By the arrangements described the feeding to the firefrom the hopper G, and the passing onward of the fuel to the bars, areantomatic, and the fire will require no cleaning.

I claim- 1. In a furnace, the combination, with afuel-- feeding hopper,of a feed-door, 0, connected with operating mechanism, and having avertical reciprocating movement, whereby an automatic feed of thefuelfrom the hopper into the furnace is produced, substantially as describedand shown.

2. In a boiler-furnace, the combination of a vertically-reciprocatingfeed-door and gratebars having a movement in the direction of theirlength, operated by power through suitable mechanism, substantially asdescribed.

3. The combination, with the shaft and its pinion O and pinion-shaft R,of the crank-shaft B, pinion E, vertical lever P, and cross-arm S, alloperating t get-her'in the manner and for the purpose set forth andshown. I

The above specification of my invention signed by me this 25th day ofApril, A. D. 1876. I

noBnRT MORGAN.

Witnesses:

WM. T. FoULKEs, Tnos. A. TURNER.

